Add ECDH support.

Additional changes:
 - use EC_GROUP_get_degree() in apps/req.c
 - add ECDSA and ECDH to apps/speed.c
 - adds support for EC curves over binary fields to ECDSA
 - new function EC_KEY_up_ref() in crypto/ec/ec_key.c
 - reorganize crypto/ecdsa/ecdsatest.c
 - add engine support for ECDH
 - fix a few bugs in ECDSA engine support

Submitted by: Douglas Stebila <douglas.stebila@sun.com>

1 files changed, 164 insertions, 0 deletions

diff --git a/crypto/ecdh/ecdh.h b/crypto/ecdh/ecdh.h
new file mode 100644
index 0000000000..b5b877b55f
--- /dev/null
+++ b/crypto/ecdh/ecdh.h
@@ -0,0 +1,164 @@
+/* crypto/ecdh/ecdh.h */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ *
+ * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
+ * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
+ * to the OpenSSL project.
+ *
+ * The ECC Code is licensed pursuant to the OpenSSL open source
+ * license provided below.
+ *
+ * In addition, Sun covenants to all licensees who provide a reciprocal
+ * covenant with respect to their own patents if any, not to sue under
+ * current and future patent claims necessarily infringed by the making,
+ * using, practicing, selling, offering for sale and/or otherwise
+ * disposing of the ECC Code as delivered hereunder (or portions thereof),
+ * provided that such covenant shall not apply:
+ *  1) for code that a licensee deletes from the ECC Code;
+ *  2) separates from the ECC Code; or
+ *  3) for infringements caused by:
+ *       i) the modification of the ECC Code or
+ *      ii) the combination of the ECC Code with other software or
+ *          devices where such combination causes the infringement.
+ *
+ * The ECDH software is originally written by Douglas Stebila of
+ * Sun Microsystems Laboratories.
+ *
+ */
+/* ====================================================================
+ * Copyright (c) 2000-2002 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+#ifndef HEADER_ECDH_H
+#define HEADER_ECDH_H
+
+#ifdef OPENSSL_NO_ECDH
+#error ECDH is disabled.
+#endif
+
+#include <openssl/bn.h>
+#include <openssl/ec.h>
+#include <openssl/ossl_typ.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct ecdh_method 
+{
+	const char *name;
+	int (*compute_key)(unsigned char *key,const EC_POINT *pub_key, EC_KEY *ecdh);
+#if 0
+	int (*init)(EC_KEY *eckey);
+	int (*finish)(EC_KEY *eckey);
+#endif
+	int flags;
+	char *app_data;
+} ECDH_METHOD;
+
+typedef struct ecdh_data_st {
+	/* EC_KEY_METH_DATA part */
+	int (*init)(EC_KEY *);
+	void (*finish)(EC_KEY *);
+	/* method specific part */
+	ENGINE	*engine;
+	int	flags;
+	const ECDH_METHOD *meth;
+	CRYPTO_EX_DATA ex_data;
+} ECDH_DATA; 
+
+/* ECDH_DATA functions */
+ECDH_DATA *ECDH_DATA_new(void);
+ECDH_DATA *ECDH_DATA_new_method(ENGINE *);
+void ECDH_DATA_free(ECDH_DATA *);
+
+ECDH_DATA *ecdh_check(EC_KEY *);
+
+
+const ECDH_METHOD *ECDH_OpenSSL(void);
+
+void	  ECDH_set_default_method(const ECDH_METHOD *);
+const ECDH_METHOD *ECDH_get_default_method(void);
+int 	  ECDH_set_method(EC_KEY *, const ECDH_METHOD *);
+
+int	  ECDH_size(const EC_KEY *);
+int ECDH_compute_key(unsigned char *key,const EC_POINT *pub_key, EC_KEY *ecdh);
+
+
+int 	  ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new 
+		*new_func, CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
+int 	  ECDH_set_ex_data(EC_KEY *d, int idx, void *arg);
+void 	  *ECDH_get_ex_data(EC_KEY *d, int idx);
+
+
+/* BEGIN ERROR CODES */
+/* The following lines are auto generated by the script mkerr.pl. Any changes
+ * made after this point may be overwritten when the script is next run.
+ */
+void ERR_load_ECDH_strings(void);
+
+/* Error codes for the ECDH functions. */
+
+/* Function codes. */
+#define ECDH_F_ECDH_COMPUTE_KEY				 100
+#define ECDH_F_ECDH_DATA_NEW				 101
+
+/* Reason codes. */
+#define ECDH_R_NO_PRIVATE_VALUE				 100
+#define ECDH_R_POINT_ARITHMETIC_FAILURE			 101
+#define ECDH_R_SHA1_DIGEST_FAILED			 102
+
+#ifdef  __cplusplus
+}
+#endif
+#endif